RFC Call from ABAP (R3) to Webdynpro EP

Hi experts,
I have a requirement to initiate a call from an ABAP program on R3 to a standard Portal (Webdynpro) API. Does anyone have any experience with this?
I understand that normally Portal (Webdynpro) applications will make the RFC call to ABAP via the established JCO connection. However there's very limited literature elaborating how the call can be made in the other direction i.e. from ABAP R3 to Portal
Anyone, please kindly advise how, if this can be done. Many thanks!
Best regards,
Lionel

Hi,
I'm trying to make a RFC call from the ABAP program to a built in Java method residing on EP. It is part of a suite of methods provided by the UME engine.
Typically a call is made from a webdynpro program to a SAP ABAP function module. In this case, I'd like to make a call from the SAP ABAP report to the EP method.
Best regards,
Lionel

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<REMOVED BY MODERATOR - REQUEST OR OFFER POINTS ARE FORBIDDEN>
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'* Author : Holger Köhn                                                  *
'* Created : 23.08.2014                                                   *
'* Changed :                                                              *
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'* create RFC-Connection                                                  *
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'* clear tblFIELDTAB                                                      *
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RFC Call from ABAP (R3) to Webdynpro EP

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